You bring up a human-nature attitude and the proof is around us all the time, whether you are discussing gender, race, age, height, beauty, etc. All of this has

You bring up a human-nature attitude and the proof is around us all the time, whether you are discussing gender, race, age, height, beauty, etc. All of this has been beaten to a dead horse. Anecdote: I'm a white guy who grew up in the inner city, and one of the most important things I ever did for myself was ridding my ghetto accent. The difference in the way people perceived me over the years is very different. The simple fact is that humans use short-cuts all the time. I may not like the short-cuts, but I can't blame people that heard my inner-city ("black") accent and assumed that I went to schools with lower education standards and that I am culturally different than they are. Bot assumptions are pretty spot-on, to be honest.